JPS6425230U - - Google Patents
Info
- Publication number
- JPS6425230U JPS6425230U JP11805387U JP11805387U JPS6425230U JP S6425230 U JPS6425230 U JP S6425230U JP 11805387 U JP11805387 U JP 11805387U JP 11805387 U JP11805387 U JP 11805387U JP S6425230 U JPS6425230 U JP S6425230U
- Authority
- JP
- Japan
- Prior art keywords
- constant voltage
- switching means
- switching
- generation means
- conduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
- Keying Circuit Devices (AREA)
- Filters And Equalizers (AREA)
Description
第１図は本考案の一実施例のイコライザ切換表
示装置４０の回路図、第２図は該イコライザ切換
表示装置４０においてダイオード３５が無い場合
のトランジスタ３６のエミツタ出力を示す波形図
、第３図はダイオード３５の動作を説明するため
の波形図、第４図は従来技術の電気回路図である
。
２１，２２……定電圧素子、２３，２４，２５
……発光ダイオード、２９，３０，３１……スイ
ツチングトランジスタ、３２，３３，３４……イ
コライザ素子、３５……ダイオード、３６……録
音イコライザ増幅用トランジスタ、４０……イコ
ライザ切換表示装置、Ｓ２１，Ｓ２２……切換ス
イツチ。
FIG. 1 is a circuit diagram of an equalizer switching display device 40 according to an embodiment of the present invention, FIG. 2 is a waveform diagram showing the emitter output of the transistor 36 when the diode 35 is not provided in the equalizer switching display device 40, and FIG. 4 is a waveform diagram for explaining the operation of the diode 35, and FIG. 4 is an electric circuit diagram of the prior art. 21, 22...constant voltage element, 23, 24, 25
... Light emitting diode, 29, 30, 31 ... Switching transistor, 32, 33, 34 ... Equalizer element, 35 ... Diode, 36 ... Recording equalizer amplification transistor, 40 ... Equalizer switching display device, S21, S22...changeover switch.
Claims (1)
応して選ばれ、相互に異なる降伏電圧を有する複
数の定電圧発生手段と、 各発生定電圧または別途定められる定電圧が与
えられる複数のスイツチング手段と、 各スイツチング手段にそれぞれ直列に接続され
る回路と、 上記複数のスイツチング手段に共通に接続され
る直流分発生手段とを含むことを特徴とする複数
の回路の切換装置。[Claims for Utility Model Registration] A plurality of changeover switches, a plurality of constant voltage generation means having mutually different breakdown voltages selected in accordance with the combination of conduction/cutoff states of each changeover switch, and each generated constant voltage. Alternatively, it is characterized by comprising a plurality of switching means to which a separately determined constant voltage is applied, a circuit connected in series to each of the switching means, and a DC component generation means commonly connected to the plurality of switching means. Switching device for multiple circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987118053U JP2512430Y2 (en) | 1987-07-30 | 1987-07-30 | Equalizer switching device for tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987118053U JP2512430Y2 (en) | 1987-07-30 | 1987-07-30 | Equalizer switching device for tape recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6425230U true JPS6425230U (en) | 1989-02-13 |
| JP2512430Y2 JP2512430Y2 (en) | 1996-10-02 |
Family
ID=31362068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987118053U Expired - Lifetime JP2512430Y2 (en) | 1987-07-30 | 1987-07-30 | Equalizer switching device for tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2512430Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54175251U (en) * | 1978-05-30 | 1979-12-11 | ||
| JPS5553336U (en) * | 1978-10-05 | 1980-04-10 |
-
1987
- 1987-07-30 JP JP1987118053U patent/JP2512430Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54175251U (en) * | 1978-05-30 | 1979-12-11 | ||
| JPS5553336U (en) * | 1978-10-05 | 1980-04-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2512430Y2 (en) | 1996-10-02 |
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